Continuity mistake: Watch the alarm clock during the scene in which Porky has trouble with the roller blind. At the start of the scene, the time on the clock says 8.00. A few shots later, it now reads 8.30, and when the cord pulls out the springs from under Porky's bed, it now reads 1.50.
Continuity mistake: When Porky goes to bed, he turns off the light above his bed and you can see that the light cord is beside the bed, but when we see Porky going off to sleep in the next shot, the cord has disappeared.
Continuity mistake: When we see Porky and Daffy sleeping at the start of the cartoon, you can see that the light above Porky's bed has nothing on it, but when Porky goes to bed later on, the light now has a cord attached to it.